)]}'
{
  "log": [
    {
      "commit": "526b4af47f44148c9d665e57723ed9f86634c6e3",
      "tree": "7906a3b45703aa730d5e7ebadc36a55aee5417ca",
      "parents": [
        "aecad432fd68dafa5b3b497c4816fbfce6fd4066"
      ],
      "author": {
        "name": "Thomas Renninger",
        "email": "trenn@suse.de",
        "time": "Thu May 26 12:26:24 2011 +0200"
      },
      "committer": {
        "name": "Len Brown",
        "email": "len.brown@intel.com",
        "time": "Sun May 29 01:50:40 2011 -0400"
      },
      "message": "ACPI: Split out custom_method functionality into an own driver\n\nWith /sys/kernel/debug/acpi/custom_method root can write\nto arbitrary memory and increase his priveleges, even if\nthese are restricted.\n\n-\u003e Make this an own debug .config option and warn about the\nsecurity issue in the config description.\n\n-\u003e Still keep acpi/debugfs.c which now only creates an empty\n   /sys/kernel/debug/acpi directory. There might be other\n   users of it later.\n\nSigned-off-by: Thomas Renninger \u003ctrenn@suse.de\u003e\nAcked-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: rui.zhang@intel.com\nSigned-off-by: Len Brown \u003clen.brown@intel.com\u003e\n"
    },
    {
      "commit": "aecad432fd68dafa5b3b497c4816fbfce6fd4066",
      "tree": "168b6b7358df13e2d1bd967c217599c77dd21fd8",
      "parents": [
        "61c4f2c81c61f73549928dfd9f3e8f26aa36a8cf"
      ],
      "author": {
        "name": "Thomas Renninger",
        "email": "trenn@suse.de",
        "time": "Thu May 26 12:26:23 2011 +0200"
      },
      "committer": {
        "name": "Len Brown",
        "email": "len.brown@intel.com",
        "time": "Sun May 29 01:50:04 2011 -0400"
      },
      "message": "ACPI: Cleanup custom_method debug stuff\n\n- Move param aml_debug_output to other params into sysfs.c\n- Split acpi_debugfs_init to prepare custom_method to be\n  an own .config option and driver.\n\nSigned-off-by: Thomas Renninger \u003ctrenn@suse.de\u003e\nAcked-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: rui.zhang@intel.com\nSigned-off-by: Len Brown \u003clen.brown@intel.com\u003e\n"
    },
    {
      "commit": "2949ad50711cc161721cf788711722eeeca33764",
      "tree": "aba75138e732b43cc2c92ee2f310a0b457c70ebd",
      "parents": [
        "2aa15890f3c191326678f1bd68af61ec6b8753ec"
      ],
      "author": {
        "name": "Vasiliy Kulikov",
        "email": "segoon@openwall.com",
        "time": "Sat Feb 19 14:18:08 2011 +0100"
      },
      "committer": {
        "name": "Rafael J. Wysocki",
        "email": "rjw@sisk.pl",
        "time": "Thu Feb 24 19:59:06 2011 +0100"
      },
      "message": "ACPI / debugfs: Fix buffer overflows, double free\n\nFile position is not controlled, it may lead to overwrites of arbitrary\nkernel memory.  Also the code may kfree() the same pointer multiple\ntimes.\n\nOne more flaw is still present: if multiple processes open the file then\nall 3 static variables are shared, leading to various race conditions.\nThey should be moved to file-\u003eprivate_data.\n\nSigned-off-by: Vasiliy Kulikov \u003csegoon@openwall.com\u003e\nReviewed-by: WANG Cong \u003cxiyou.wangcong@gmail.com\u003e\nReviewed-by: Eugene Teo \u003ceugeneteo@kernel.org\u003e\nCc: stable@kernel.org\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n"
    },
    {
      "commit": "ed3aada1bf34c5a9e98af167f125f8a740fc726a",
      "tree": "017e81b8816dbf234117c29cdff1ec1f99bd11b7",
      "parents": [
        "9457b24a0955bbdd2e89220a75de69fe09501bba"
      ],
      "author": {
        "name": "Dave Jones",
        "email": "davej@redhat.com",
        "time": "Sat Nov 13 00:58:54 2010 -0500"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Sat Nov 13 09:52:16 2010 -0800"
      },
      "message": "ACPI: debugfs custom_method open to non-root\n\nCurrently we have:\n\n  --w--w--w-. 1 root root 0 2010-11-11 14:56 /sys/kernel/debug/acpi/custom_method\n\nwhich is just crazy. Change this to --w-------.\n\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\nSigned-off-by: Len Brown \u003clen.brown@intel.com\u003e\nCc: stable@kernel.org (for 2.6.36)\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "6038f373a3dc1f1c26496e60b6c40b164716f07e",
      "tree": "a0d3bbd026eea41b9fc36b8c722cbaf56cd9f825",
      "parents": [
        "1ec5584e3edf9c4bf2c88c846534d19cf986ba11"
      ],
      "author": {
        "name": "Arnd Bergmann",
        "email": "arnd@arndb.de",
        "time": "Sun Aug 15 18:52:59 2010 +0200"
      },
      "committer": {
        "name": "Arnd Bergmann",
        "email": "arnd@arndb.de",
        "time": "Fri Oct 15 15:53:27 2010 +0200"
      },
      "message": "llseek: automatically add .llseek fop\n\nAll file_operations should get a .llseek operation so we can make\nnonseekable_open the default for future file operations without a\n.llseek pointer.\n\nThe three cases that we can automatically detect are no_llseek, seq_lseek\nand default_llseek. For cases where we can we can automatically prove that\nthe file offset is always ignored, we use noop_llseek, which maintains\nthe current behavior of not returning an error from a seek.\n\nNew drivers should normally not use noop_llseek but instead use no_llseek\nand call nonseekable_open at open time.  Existing drivers can be converted\nto do the same when the maintainer knows for certain that no user code\nrelies on calling seek on the device file.\n\nThe generated code is often incorrectly indented and right now contains\ncomments that clarify for each added line why a specific variant was\nchosen. In the version that gets submitted upstream, the comments will\nbe gone and I will manually fix the indentation, because there does not\nseem to be a way to do that using coccinelle.\n\nSome amount of new code is currently sitting in linux-next that should get\nthe same modifications, which I will do at the end of the merge window.\n\nMany thanks to Julia Lawall for helping me learn to write a semantic\npatch that does all this.\n\n\u003d\u003d\u003d\u003d\u003d begin semantic patch \u003d\u003d\u003d\u003d\u003d\n// This adds an llseek\u003d method to all file operations,\n// as a preparation for making no_llseek the default.\n//\n// The rules are\n// - use no_llseek explicitly if we do nonseekable_open\n// - use seq_lseek for sequential files\n// - use default_llseek if we know we access f_pos\n// - use noop_llseek if we know we don\u0027t access f_pos,\n//   but we still want to allow users to call lseek\n//\n@ open1 exists @\nidentifier nested_open;\n@@\nnested_open(...)\n{\n\u003c+...\nnonseekable_open(...)\n...+\u003e\n}\n\n@ open exists@\nidentifier open_f;\nidentifier i, f;\nidentifier open1.nested_open;\n@@\nint open_f(struct inode *i, struct file *f)\n{\n\u003c+...\n(\nnonseekable_open(...)\n|\nnested_open(...)\n)\n...+\u003e\n}\n\n@ read disable optional_qualifier exists @\nidentifier read_f;\nidentifier f, p, s, off;\ntype ssize_t, size_t, loff_t;\nexpression E;\nidentifier func;\n@@\nssize_t read_f(struct file *f, char *p, size_t s, loff_t *off)\n{\n\u003c+...\n(\n   *off \u003d E\n|\n   *off +\u003d E\n|\n   func(..., off, ...)\n|\n   E \u003d *off\n)\n...+\u003e\n}\n\n@ read_no_fpos disable optional_qualifier exists @\nidentifier read_f;\nidentifier f, p, s, off;\ntype ssize_t, size_t, loff_t;\n@@\nssize_t read_f(struct file *f, char *p, size_t s, loff_t *off)\n{\n... when !\u003d off\n}\n\n@ write @\nidentifier write_f;\nidentifier f, p, s, off;\ntype ssize_t, size_t, loff_t;\nexpression E;\nidentifier func;\n@@\nssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off)\n{\n\u003c+...\n(\n  *off \u003d E\n|\n  *off +\u003d E\n|\n  func(..., off, ...)\n|\n  E \u003d *off\n)\n...+\u003e\n}\n\n@ write_no_fpos @\nidentifier write_f;\nidentifier f, p, s, off;\ntype ssize_t, size_t, loff_t;\n@@\nssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off)\n{\n... when !\u003d off\n}\n\n@ fops0 @\nidentifier fops;\n@@\nstruct file_operations fops \u003d {\n ...\n};\n\n@ has_llseek depends on fops0 @\nidentifier fops0.fops;\nidentifier llseek_f;\n@@\nstruct file_operations fops \u003d {\n...\n .llseek \u003d llseek_f,\n...\n};\n\n@ has_read depends on fops0 @\nidentifier fops0.fops;\nidentifier read_f;\n@@\nstruct file_operations fops \u003d {\n...\n .read \u003d read_f,\n...\n};\n\n@ has_write depends on fops0 @\nidentifier fops0.fops;\nidentifier write_f;\n@@\nstruct file_operations fops \u003d {\n...\n .write \u003d write_f,\n...\n};\n\n@ has_open depends on fops0 @\nidentifier fops0.fops;\nidentifier open_f;\n@@\nstruct file_operations fops \u003d {\n...\n .open \u003d open_f,\n...\n};\n\n// use no_llseek if we call nonseekable_open\n////////////////////////////////////////////\n@ nonseekable1 depends on !has_llseek \u0026\u0026 has_open @\nidentifier fops0.fops;\nidentifier nso ~\u003d \"nonseekable_open\";\n@@\nstruct file_operations fops \u003d {\n...  .open \u003d nso, ...\n+.llseek \u003d no_llseek, /* nonseekable */\n};\n\n@ nonseekable2 depends on !has_llseek @\nidentifier fops0.fops;\nidentifier open.open_f;\n@@\nstruct file_operations fops \u003d {\n...  .open \u003d open_f, ...\n+.llseek \u003d no_llseek, /* open uses nonseekable */\n};\n\n// use seq_lseek for sequential files\n/////////////////////////////////////\n@ seq depends on !has_llseek @\nidentifier fops0.fops;\nidentifier sr ~\u003d \"seq_read\";\n@@\nstruct file_operations fops \u003d {\n...  .read \u003d sr, ...\n+.llseek \u003d seq_lseek, /* we have seq_read */\n};\n\n// use default_llseek if there is a readdir\n///////////////////////////////////////////\n@ fops1 depends on !has_llseek \u0026\u0026 !nonseekable1 \u0026\u0026 !nonseekable2 \u0026\u0026 !seq @\nidentifier fops0.fops;\nidentifier readdir_e;\n@@\n// any other fop is used that changes pos\nstruct file_operations fops \u003d {\n... .readdir \u003d readdir_e, ...\n+.llseek \u003d default_llseek, /* readdir is present */\n};\n\n// use default_llseek if at least one of read/write touches f_pos\n/////////////////////////////////////////////////////////////////\n@ fops2 depends on !fops1 \u0026\u0026 !has_llseek \u0026\u0026 !nonseekable1 \u0026\u0026 !nonseekable2 \u0026\u0026 !seq @\nidentifier fops0.fops;\nidentifier read.read_f;\n@@\n// read fops use offset\nstruct file_operations fops \u003d {\n... .read \u003d read_f, ...\n+.llseek \u003d default_llseek, /* read accesses f_pos */\n};\n\n@ fops3 depends on !fops1 \u0026\u0026 !fops2 \u0026\u0026 !has_llseek \u0026\u0026 !nonseekable1 \u0026\u0026 !nonseekable2 \u0026\u0026 !seq @\nidentifier fops0.fops;\nidentifier write.write_f;\n@@\n// write fops use offset\nstruct file_operations fops \u003d {\n... .write \u003d write_f, ...\n+\t.llseek \u003d default_llseek, /* write accesses f_pos */\n};\n\n// Use noop_llseek if neither read nor write accesses f_pos\n///////////////////////////////////////////////////////////\n\n@ fops4 depends on !fops1 \u0026\u0026 !fops2 \u0026\u0026 !fops3 \u0026\u0026 !has_llseek \u0026\u0026 !nonseekable1 \u0026\u0026 !nonseekable2 \u0026\u0026 !seq @\nidentifier fops0.fops;\nidentifier read_no_fpos.read_f;\nidentifier write_no_fpos.write_f;\n@@\n// write fops use offset\nstruct file_operations fops \u003d {\n...\n .write \u003d write_f,\n .read \u003d read_f,\n...\n+.llseek \u003d noop_llseek, /* read and write both use no f_pos */\n};\n\n@ depends on has_write \u0026\u0026 !has_read \u0026\u0026 !fops1 \u0026\u0026 !fops2 \u0026\u0026 !has_llseek \u0026\u0026 !nonseekable1 \u0026\u0026 !nonseekable2 \u0026\u0026 !seq @\nidentifier fops0.fops;\nidentifier write_no_fpos.write_f;\n@@\nstruct file_operations fops \u003d {\n... .write \u003d write_f, ...\n+.llseek \u003d noop_llseek, /* write uses no f_pos */\n};\n\n@ depends on has_read \u0026\u0026 !has_write \u0026\u0026 !fops1 \u0026\u0026 !fops2 \u0026\u0026 !has_llseek \u0026\u0026 !nonseekable1 \u0026\u0026 !nonseekable2 \u0026\u0026 !seq @\nidentifier fops0.fops;\nidentifier read_no_fpos.read_f;\n@@\nstruct file_operations fops \u003d {\n... .read \u003d read_f, ...\n+.llseek \u003d noop_llseek, /* read uses no f_pos */\n};\n\n@ depends on !has_read \u0026\u0026 !has_write \u0026\u0026 !fops1 \u0026\u0026 !fops2 \u0026\u0026 !has_llseek \u0026\u0026 !nonseekable1 \u0026\u0026 !nonseekable2 \u0026\u0026 !seq @\nidentifier fops0.fops;\n@@\nstruct file_operations fops \u003d {\n...\n+.llseek \u003d noop_llseek, /* no read or write fn */\n};\n\u003d\u003d\u003d\u003d\u003d End semantic patch \u003d\u003d\u003d\u003d\u003d\n\nSigned-off-by: Arnd Bergmann \u003carnd@arndb.de\u003e\nCc: Julia Lawall \u003cjulia@diku.dk\u003e\nCc: Christoph Hellwig \u003chch@infradead.org\u003e\n"
    },
    {
      "commit": "c637e4861c7db8165d0f438db3829e7878c96059",
      "tree": "7cb2621815f1861d0e333cced6bf993f1b38c4e0",
      "parents": [
        "a25ee9200eef07377e1703697afbb5d81f89e500"
      ],
      "author": {
        "name": "Zhang Rui",
        "email": "rui.zhang@intel.com",
        "time": "Thu Jul 15 10:46:17 2010 +0800"
      },
      "committer": {
        "name": "Len Brown",
        "email": "len.brown@intel.com",
        "time": "Sat Aug 14 23:02:14 2010 -0400"
      },
      "message": "ACPI: introduce module parameter acpi.aml_debug_output\n\nIntroduce module parameter acpi.aml_debug_output.\n\nWith acpi.aml_debug_output set, we can get AML debug object output\n(Store (AAA, Debug)), even with CONFIG_ACPI_DEBUG cleared.\n\nTogether with the runtime custom method mechanism,\nwe can debug AML code problems without rebuilding the kernel.\n\nSigned-off-by: Zhang Rui \u003crui.zhang@intel.com\u003e\nSigned-off-by: Len Brown \u003clen.brown@intel.com\u003e\n"
    },
    {
      "commit": "a25ee9200eef07377e1703697afbb5d81f89e500",
      "tree": "efecbc42b6a600ee17c81951834d88f1ad0566e3",
      "parents": [
        "9fe6206f400646a2322096b56c59891d530e8d51"
      ],
      "author": {
        "name": "Zhang Rui",
        "email": "rui.zhang@intel.com",
        "time": "Thu Jul 15 10:46:15 2010 +0800"
      },
      "committer": {
        "name": "Len Brown",
        "email": "len.brown@intel.com",
        "time": "Sat Aug 14 23:02:00 2010 -0400"
      },
      "message": "ACPI: introduce drivers/acpi/debugfs.c\n\nIntroduce drivers/acpi/debugfs.c.\n\nCode for ACPI debugfs I/F,\ni.e. /sys/kernel/debug/acpi/custom_method,\nis moved to this file.\n\nAnd make ACPI debugfs always built in,\neven if CONFIG_ACPI_DEBUG is cleared.\n\nBTW:this adds about 400bytes code to ACPI, when\nCONFIG_ACPI_DEBUG is cleared.\n\n[uaccess.h build fix from Andrew Morton \u003cakpm@linux-foundation.org\u003e]\n\nSigned-off-by: Zhang Rui \u003crui.zhang@intel.com\u003e\nSigned-off-by: Len Brown \u003clen.brown@intel.com\u003e\n"
    }
  ]
}